Troubleshooting; How To Check Errors Using Led Displays; Checking Error Display - Mitsubishi Electric FX3U-ENET-ADP User Manual

FX -ENET-ADP User's Manual
3U
9.

Troubleshooting

This section explains the contents of the errors that may occur during communication between the Ethernet
adapter and an external device as well as the troubleshooting procedures.
The following are methods for checking if there is an error on the Ethernet adapter side and the contents of
the error.
Use one of the following methods to check if there is an error and its content, then take corrective actions.
1) Check using the display LED on the front of the Ethernet adapter (Refer to Section 9.1)
The display LED on/off status can be used to check if an error is occurring in the Ethernet adapter.
2) Check through GX Works2
GX Works2 can be used to check various conditions of the Ethernet adapter as well as the error code
corresponding to the contents of the error occurring and to perform tests.
a) Ethernet diagnostics (Refer to Subsection 9.2.1)
- PING test (Refer to Subsection 6.10.1)
- Check the contents of the error using the error code (Refer to Subsection 9.3.1)
Confirm the contents of errors by obtaining the error code and referring to Subsection 9.3.1.
<Note>
When a line error occurs when devices manufactured by several manufacturers are connected, divide and
determine the area where the line error has occurred using a line analyzer, etc.
9.1

How to Check Errors Using LED Displays

This section describes the errors that can be checked with the LED displays on the front of the Ethernet
adapter.
9.1.1

Checking error display

The following can be checked with the LED displays on the front of the Ethernet adapter.
<Ethernet adapter LED>
LED name
Does not turn ON when
POWER the power of the PLC
main unit is turned ON.
100M Does not turn on
116
Status to check
The Ethernet adapter may not be connected correctly to the PLC main unit. Check the
connection.
When the connection is all right, the hardware may be defective.
For repair, contact your local Mitsubishi Electric representative.
1) Using 10Mbps HUB
• Initial processing.
• Replace with 100Mbps HUB.
2) Using 100Mbps HUB
• Check the connection of the connectors on the Ethernet side and the HUB side.
• Replace the cable.
9.1 How to Check Errors Using LED Displays
Cause/corrective action
9 Troubleshooting